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Companies Headquartered in California

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A list of Californian companies. Many well known California companies have been included. While this list isn't definitive, these are most of the top businesses in the state of California. As a country, the United States has encouraged entrepreneurship throughout much of its history. The state of California is no exception to this rule, and new businesses are started in California daily, ranging from corporations to LLCs to partnerships to sole proprietorships. This list, however, is mostly focused on the largest corporations in the state of California.

This list answers the question of "what companies are based in California?" There are a significant number of the world's largest corporations that are based in the Golden State. Many of the biggest technology companies are based here, including Google, Facebook and eBay amongst the most prominent. 
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  • 1
    Twentieth Century Fox Film Cor is listed (or ranked) 1 on the list Companies Headquartered in California

    Twentieth Century Fox Film Corp

    Motion Picture and Video Production, Film industry
  • 2
    24 Hour Fitness is listed (or ranked) 2 on the list Companies Headquartered in California

    24 Hour Fitness

    Health Care
  • 3
    A&M Records is listed (or ranked) 3 on the list Companies Headquartered in California
  • 4
    ABM Industries is listed (or ranked) 4 on the list Companies Headquartered in California

    ABM Industries

    Facility management
  • 5
    ACC Capital Holdings is listed (or ranked) 5 on the list Companies Headquartered in California

    ACC Capital Holdings

  • 6
    Accelrys is listed (or ranked) 6 on the list Companies Headquartered in California

    Accelrys

    Commercial Physical and Biological Research, Software
  • 7
    Activision is listed (or ranked) 7 on the list Companies Headquartered in California

    Activision

    Video game industry, Prepackaged Software
  • 8
    Actuate Corporation is listed (or ranked) 8 on the list Companies Headquartered in California

    Actuate Corporation

  • 9
    Adaptec is listed (or ranked) 9 on the list Companies Headquartered in California

    Adaptec

    Computer, Semiconductor and Other Electronic Component Manufacturing
  • 10
    Adio is listed (or ranked) 10 on the list Companies Headquartered in California

    Adio

  • 11
    Adobe Systems is listed (or ranked) 11 on the list Companies Headquartered in California

    Adobe Systems

    Software, Computer
  • 12
    AECOM is listed (or ranked) 12 on the list Companies Headquartered in California

    AECOM

  • 13
    Aerojet is listed (or ranked) 13 on the list Companies Headquartered in California

    Aerojet

    Aerospace
  • 14
    Agilent Technologies is listed (or ranked) 14 on the list Companies Headquartered in California

    Agilent Technologies

    Biotechnology, Electronics industry
  • 15
    Aldila, Inc. is listed (or ranked) 15 on the list Companies Headquartered in California

    Aldila, Inc.

    Sporting and Athletic Goods
  • 16
    Allergan is listed (or ranked) 16 on the list Companies Headquartered in California

    Allergan

    Pharmaceutical Preparation, Biotechnology
  • 17
    AMD is listed (or ranked) 17 on the list Companies Headquartered in California

    AMD

    Semiconductor and Other Electronic Component Manufacturing, Semiconductor industry
  • 18
    American Apparel is listed (or ranked) 18 on the list Companies Headquartered in California

    American Apparel

    Clothing, Retail
  • 19
    American Honda Motor Co., Inc. is listed (or ranked) 19 on the list Companies Headquartered in California

    American Honda Motor Co., Inc.

  • 20
    ARC Document Solutions is listed (or ranked) 20 on the list Companies Headquartered in California

    ARC Document Solutions

    Direct Mail Advertising Services, Photocopying and Duplicating Services
  • 21
    Ameriflight is listed (or ranked) 21 on the list Companies Headquartered in California

    Ameriflight

  • 22
    Ameriquest Mortgage is listed (or ranked) 22 on the list Companies Headquartered in California

    Ameriquest Mortgage

  • 23
    Amgen is listed (or ranked) 23 on the list Companies Headquartered in California

    Amgen

    Biotechnology, Biological Product (except Diagnostic) Manufacturing
  • 24
    Amy's Kitchen is listed (or ranked) 24 on the list Companies Headquartered in California
  • 25
    AnaSpec is listed (or ranked) 25 on the list Companies Headquartered in California

    AnaSpec

    Biotechnology
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